:root{color-scheme:dark;--paper:#eee8da;--muted:#a5afa7;--accent:#d7c398;--line:#ffffff1b}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden}body{background:#171d1e;color:var(--paper);font-family:"Apple SD Gothic Neo","Malgun Gothic",sans-serif}button,a,input{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}button{font:inherit;cursor:pointer;background:#28312f;border:1px solid #ffffff25;color:#c9cec6;padding:5px 11px;border-radius:4px;font-size:11px;white-space:nowrap}button:hover{background:#3a443e}button[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#242720}a{color:inherit;text-decoration:none}header{height:30px;display:flex;justify-content:space-between;align-items:center;padding:0 24px;border-bottom:1px solid var(--line)}.brand,.edition{font-size:9px;letter-spacing:.12em}.edition{color:var(--muted)}.layout{height:calc(100dvh - 30px);display:grid;grid-template-rows:auto minmax(100px,1fr) auto auto}.titlebar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 24px 10px}h1{font-size:25px;letter-spacing:-.06em;font-weight:500;margin:0}h1 span{display:inline-block;color:#a0aaa1;font-size:15px;margin-left:14px;letter-spacing:-.03em}.intro{margin:0;color:#98a59b;font-size:11px;line-height:1.6;text-align:right}.viewport{position:relative;min-height:0;overflow:hidden;background:#1b2223}.viewport canvas{display:block;width:100%;height:100%;position:absolute;inset:0;touch-action:none;cursor:grab}.viewport canvas:active{cursor:grabbing}.view-caption{position:absolute;left:24px;top:13px;pointer-events:none;z-index:1;font-size:10px;letter-spacing:.08em;color:#b8c0b5}.view-caption p{font-size:10px;margin:6px 0;color:#94a095;letter-spacing:0}#focusMarker{position:absolute;width:20px;height:20px;border:1px solid var(--accent);border-radius:50%;transform:translate(-50%,-50%);pointer-events:none;z-index:1}#focusMarker[hidden]{display:none}#loading{position:absolute;inset:0;display:grid;place-content:center;background:#1a2021;z-index:2;font-size:13px;color:var(--accent)}#loading[hidden]{display:none}.toolbox{border-top:1px solid var(--line);background:#1d2424;padding:10px 24px 8px}.quickbar{display:flex;align-items:center;gap:6px;margin-bottom:9px}.quickbar .hint{font-size:10px;color:#94a196;margin-left:8px}.quickbar #reset{margin-left:auto}.sliders{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px 24px}.control{min-width:0}.control-label{display:flex;justify-content:space-between;gap:6px;font-size:11px;line-height:1.3;margin-bottom:4px}.control-label output{color:var(--accent);font-variant-numeric:tabular-nums;white-space:nowrap}input[type=range]{display:block;width:100%;height:19px;margin:0;accent-color:var(--accent);cursor:pointer}.modes{display:flex;gap:5px}.modes button{flex:1;padding:4px 5px;font-size:10px}.color-guide{font-size:9px;color:#85958e}.color-guide b{font-weight:400;color:#e0b28c}.color-guide i{font-style:normal;color:#99b7de}.footer{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 24px;border-top:1px solid var(--line);color:#91a095;font-size:9px;line-height:1.4}.footer nav{display:flex;gap:14px;align-items:center}.museum{color:var(--accent)}.footer a:hover{text-decoration:underline}#focusValue{min-width:43px;text-align:right}@media(max-width:650px){header{padding:0 12px;height:26px}.edition{font-size:8px}.brand{font-size:8px}.layout{height:calc(100dvh - 26px)}.titlebar{padding:9px 12px 8px;display:block}h1{font-size:22px}h1 span{font-size:12px;margin-left:10px}.intro{display:none}.view-caption{left:12px;top:10px;font-size:9px}.view-caption p{font-size:9px}.toolbox{padding:8px 12px 7px}.sliders{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px 18px}.control-label{font-size:10px;margin-bottom:2px}input[type=range]{height:17px}.quickbar{gap:4px;margin-bottom:8px}.quickbar button{font-size:10px;padding:5px 7px}.quickbar .hint{display:none}.modes button{font-size:9px;padding:3px}.footer{padding:5px 12px;font-size:8px;gap:5px}.footer .credit{display:none}.footer nav{width:100%;justify-content:space-between;gap:8px}.color-guide{display:none}}@media(max-height:560px){.titlebar{padding-top:5px;padding-bottom:5px}h1{font-size:18px}h1 span{font-size:12px}.toolbox{padding-top:6px;padding-bottom:5px}.sliders{gap:4px 18px}.quickbar{margin-bottom:5px}.footer{padding-top:4px;padding-bottom:4px}}

.lesson-pages{display:flex;align-items:center;gap:7px;font-size:10px}.lesson-pages a{padding:4px 9px;border:1px solid var(--line);border-radius:4px}.lesson-pages a[aria-current=page]{background:var(--accent);color:#242720;border-color:var(--accent)}.lesson-pages a:hover{border-color:var(--accent)}header{height:38px}.layout{height:calc(100dvh - 38px)}@media(max-width:650px){header{height:34px}.layout{height:calc(100dvh - 34px)}.lesson-pages{gap:4px;font-size:9px}.lesson-pages a{padding:4px 6px}.brand{letter-spacing:.02em;font-size:8px}}
.lesson-pages{flex-wrap:wrap}@media(max-width:650px){header{height:65px;flex-direction:column;justify-content:center;gap:7px}.layout{height:calc(100dvh - 65px)}.lesson-pages a{font-size:9px;padding:5px 7px}}

@media(max-width:650px){header{height:65px;flex-direction:column;justify-content:center;gap:7px}.layout{height:calc(100dvh - 65px)}.lesson-pages{gap:5px}.lesson-pages a{font-size:9px;padding:5px 8px}.footer .museum{display:none}}